12 days old euphoria duch passion,got also purple haze same age same problem it started 4 days ago,its not the soil i grown in this soil many strains ph 6.5 n-p-k 14-16-18 0.7kg/m3 thats the soil called seedling german brand,ph water 6.5,no nutes,temp day 25c temp night 21c,good ventilation,this shit is spreding fast i flushed a few plants and it didnt stop tryed some fugicide it didnt help,im posted this 5 times and still cant figure it out,if theres someone whit knowlege of what this can be,im thinking some kinda disease